Glossary

ED
ED Glass — A Necessary Element of Nikkor Telephoto Lenses:
Nikon developed ED (Extra-low Dispersion) glass to allow the making of lenses that offer better sharpness and color improvement by minimizing chromatic aberration in Nikon 80-400mm. Place simply; chromatic aberration is a kind of image and color spreading that occurs when light energy of varying wavelengths passes through optical glass. In the past, correcting this difficulty for telephoto lenses required particular optical elements that present irregular dispersion characteristics, especially calcium fluoride crystals. But, fluorite simply cracks and is responsive to temperature modifies that can harmfully affect focusing by changing the lens' refractive index. So Nikon designers and engineers place their heads jointly and came up with ED glass, which presents all the reimbursement and none of the disadvantages of calcium fluorite-based glass in Nikon 80-400mm Lens. With this modernism, Nikon developed numerous types of ED glass appropriate for various lenses like 80-400mm F4.5-5.6D Lens. They bring dramatic sharpness and contrast even at their largest apertures like in 80-400mm Lens. In this way, Nikkor's ED-series lenses exemplify Nikon's supremacy in lens modernism and presentation.

SIC
Nikon Super Integrated Coating Make Certain Outstanding Presentation:
To improve the presentation of Nikon 80-400mm optical lens elements, Nikon uses an exclusive multilayer lens coating that assists decrease ghost and flare to an insignificant level. Nikon Super Integrated Coating attains a number of purposes, including minimized indication in the wider wavelength range and higher color balance and imitation. Nikon Super Integrated Coating is particularly effectual for lenses with a large number of elements. Also, Nikon's multilayer coating procedure is modified to the design of every particular lens. The number of coatings applied to every lens element is cautiously calculated to match the lens type and glass used, and as well to assure the consistent color balance that characterizes Nikkor lenses. This outcome in lenses that assemble much higher standards than the rest of the industry.

RF
Rear Focusing (RF):
through Nikon’s Rear Focusing (RF) system, each the lens elements are separated into exact lens groups, with simply the rear lens group touching for focusing. This makes autofocusing process smoother and quicker.

DC
AF DC-Nikkor Lenses — Unique Nikkors for Unique Portraits:
AF DC-Nikkors feature exclusive Nikon Defocus-image Control technology. This permits photographers to manage the degree of spherical aberration in the forefront or background by rotating the lens’ DC ring. This will make a rounded out-of-focus blur that is perfect for portrait photography. No other lenses in the world present this particular method.

D
Distance Information
D-type and G-type Nikkors communicate subject-to-camera distance information to AF Nikon camera bodies. This after that makes probable advances like 3D Matrix Metering and 3D Multi-Sensor Balanced Fill-Flash. Note: D-type and G-type Nikkors offers distance information to the following cameras: Auto exposure; F6, F5, F100, F90X, F80, F75, F70, F65, F60, F55, F50, Pronea S, Pronea 600i, D2 series, D1 series, D100 and D70s/D70. Flash control; F6, F5, F100, F90X, F80, F75, F70, D2 series, D1 series, D100, and D70s/D70 cameras.

G
G-Type Nikkor Lens:
The G-type Nikkor has no aperture ring; aparture must be elected from camera body.

SWM
Silent Wave Motor:
Nikon’s AF-S technology is so far another cause professional photographers similar to Nikkor telephoto lenses. AF-S Nikkors feature Nikon’s SWM which changes “traveling waves” into rotating energy to focus the optics. This allows high-speed autofocusing that’s very correct and super quiet.

M/A
M/A Mode:
AF-S Nikkors feature Nikon’s exclusive M/A mode, that permits switching from AutoFocus to manual operation with almost no time insulate — still during AF servo process and despite of AF mode in employ.

VR
Vibration Reduction (VR):
This innovative VR system minimizes image blur caused by camera shake and offers the equivalent of shooting at a shutter speed three stops (eight times) faster. It allows handheld shooting at dusk, at night, and even in poorly lit interiors. The lens' VR system also detects automatically when the photographer pans--no special mode is required.
* As determined by Nikon performance tests.

DX
DX Nikkor:
Compact and lightweight DX Nikkor lenses featuring a smaller image loop are particularly designed and optimized for Nikon D2-series, D1-series, D100 and D70s/D70 digital SLR cameras. These are perfect options for scenery photographers and others who require to shoot liberal scenes with Nikon DX-Format digital SLRs.
Note: We do not advise use of DX Nikkor with 35mm (135) or IX240 format cameras.